Hello Mike, I have left a couple of messages on the other 'guest' site, but having had no response so far, I don't know whether you have been able to read them. In addition to the Roby and Railway article I gave you, I have also another (very) small piece on architecture. I wondered if you might be interested, and if you'd like a copy for possible inclusion on your site? Would very much like to have a chat with you to give further details. Can you get back to me? Regards, Frank.